Pentax manufactures a number of lenses similar to the smc DA Star 55mm f/1.4 SDM, including the smc FA 50mm f/1.4. Like Pentax’s 55mm f/1.4 SDM, the Pentax 50mm f/1.4 also has wide aperture options, providing photographers advantages in low light environments and the ability to snap photos with a very shallow depth of field.

Additional perks of the Pentax smc FA 50mm f/1.4 include:

Its price. Costing $450, it is nearly $200 less than its 55mm f/1.4 family member.

Its lightweight and compact build, weighing 220 grams and measuring just shy of 4 centimeters in length, makes it an ideal lens for photographers on the go.

Benefits of the Pentax smc DA Star 55mm f/1.4 SDM are:

Its quick autofocus motor, making it easier to catch moving subjects.

Its circular aperture, which aids in creating better and more pronounced bokeh.

Good control of chromatic aberration. It manages to keep this defect in check in the center, edges, and corners of an image.

Pentax's smc DA Star 55mm f/1.4 SDM, left, does an excellent job containing chromatic aberration. It even manages to keep this defect in check throughout an entire image.

So how does Pentax’s smc DA Star 55mm f/1.4 SDM compare to products made by crosstown rivals Canon and Nikon ?

The optics of the Pentax smc DA Star 55mm f/1.4 SDM manages to hold its own with the titans of the camera industry, including Nikon’s AF-S Nikkor 50mm f/1.4G and Canon’s EF 50mm f/1.4 USM. All three lenses were close in brightness, and the trio were near equals in controlling distortion and lens shading.

However, the Pentax smc DA Star 55mm f/1.4 SDM was weighed down in one important category.

Pentax’s 55mm f/1.4 SDM score was bogged down by its resolution, especially at the widest aperture of f/1.4. However, the three lenses came close to equalizing around aperture f/2.8. At smaller apertures, the Nikon 50mm f/1.4G and Canon 50mm f/1.4 USM began to again separate themselves against Pentax’s 55mm f/1.4 SDM with better resolution quality.

Other distinctions of the Nikon AF-S Nikkor 50mm f/1.4G include:

Its affordable price, costing just under $450 (USD).

Good resolution, especially between apertures f/4-f/8.

Lightest out of the bunch, weighing a dainty 280 grams.

Winning attributes of Canon’s 50mm f/1.4 USM include:

Its extreme value, priced at the bargain rate of $385 (USD).

Its sharpness, especially at middle aperture settings.

Most compact, measuring just over 5 centimeters in length.

Benefits of the Pentax smc DA Star 55mm f/1.4 SDM are:

Its control of chromatic aberration. It bested Canon and Nikon at tapping down this unwanted defect.

Further readings for the Pentax smc DA Star 55mm f/1.4 SDM review

To provide photographers with a broader perspective about mobiles, lenses and cameras, here are links to articles, reviews, and analyses of photographic equipment produced by DxOMark, renown websites, magazines or blogs.

The Pentax smc DA Star 55mm f/1.4 SDM is a prime standard lens that allows users to dream up pictures with incredible artistic aesthetics thanks largely to its medium focal length and extra wide aperture of f/1.4. The latter also gives it a leg up in dark conditions. But how does the lens compare to similar Pentax lenses, or similar pieces of glass made by its rivals?